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1 Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
2 BCCM/LMG Bacteria Collection, Laboratory of Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Gent, Belgium
3 Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, Ghent University, De Pintelaan 185, B-9000 Gent, Belgium
Correspondence
Margo Baele
Margo.Baele{at}rug.ac.be
Streptococcus ferus is a mutans-like streptococcus originally isolated from wild rats fed with sugar cane. Taxonomically, this species has not been studied extensively. Ten Gram-positive coccal strains, isolated from the tonsils and nasal conchae of piglets, were identified as S. ferus by 16S rDNA sequencing, tRNA-intergenic spacer length polymorphism analysis (tDNA-PCR), whole-cell protein profiling using SDS-PAGE, G+C content determination and extensive biochemical testing. In all these tests, the type strain of S. ferus (LMG 16520T), from a rat, was included. The results of the tests are described and an emended species description is presented.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of S. ferus strains LMG 19829 and LMG 16520T are AF336367 and AY058218.
A dendrogram based on tDNA-PCR fingerprints including a wider sample of Streptococcus species is available as supplementary material in IJSEM Online (http://ijs.sgmjournals.org/).
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